Zusammenfassung
Hintergrund: Es wurde die automatische Erfassung der zentralen Netzhautdicke durch ein StratusOCT
(Zeiss, Deutschland) und ein Spectralis-HRA-OCT-System (Heidelberg Engineering, Deutschland)
verglichen. Material und Methoden: 50 Patienten (25 Frauen und 25 Männer) werden in die Studie eingeschlossen. In allen
Fällen wurden beide Augen gemessen. Es erfolgten konsekutive Messungen an beiden Geräten.
Die zentrale und regional verteile Netzhautdicke wurde aus beiden Geräten automatisiert
berechnet und die Übereinstimmung der Messergebnisse mittels Bland-Altmann-Analyse
untersucht. Ergebnisse: Die foveale Netzhautdicke war beim Spectralis-HRA-OCT signifikant größer als beim
StratusOCT (p < 0,01). Schlussfolgerung: Sowohl Time-Domain- als auch Spectral-Domain-OCT-Geräte liefern verlässliche Daten
hinsichtlich der automatisierten Erfassung der Netzhautdicke. Die Spectral-Domain-OCT-Maschine
liefert jedoch signifikant dickere Werte für die zentrale Netzhautdicke als die Time-Domain-Maschine.
Entsprechend können die Messwerte aus beiden Maschinen nicht direkt verglichen werden.
Abstract
Background: The aim of this study was to compare macular thickness measurements obtained from
time-domain optical coherence tomography (OCT) and spectral-domain OCT to evaluate
their agreement. Materials and Methods: Fifty randomly assigned subjects were included. Twenty-five were male, twenty-five
female. In all cases both eyes were measured. Serial measurements were obtained from
time-domain (StratusOCT, Zeiss) and spectral-domain OCT (Heidelberg Engineering, Germany).
Total and regional macular thicknesses were obtained from both machines. Their agreement
was estimated by Bland Altman plots. Results: The foveal and total macular thicknesses measured by 3D OCT were significantly greater
than those measured by Stratus OCT (p < 0.001). Conclusions: While both time-domain and spectral-domain OCTs are reliable for macular thickness
measurements, spectral-domain OCT delivers significantly higher values for macular
thickness compared to the time-domain OCT. Macular measurements obtained from the
two OCT systems may not be used interchangeably.
Schlüsselwörter
Retina - physiologische Optik - Informationstechnologie
Key words
retina - physiological optics - information technology
Literatur
- 1
Anger E M, Unterhuber A, Hermann B. et al .
Ultrahigh resolution optical coherence tomography of the monkey fovea. Identification
of retinal sublayers by correlation with semithin histology sections.
Exp Eye Res.
2004;
78
1117-1125
- 2
Bland J M, Altman D G.
Statistical methods for assessing agreement between two methods of clinical measurement.
Lancet.
1986;
1
307-310
- 3
Choi S S, Zawadzki R J, Greiner M A. et al .
Fourier-domain optical coherence tomography and adaptive optics reveal nerve fiber
layer loss and photoreceptor changes in a patient with optic nerve drusen.
J Neuroophthalmol.
2008;
28
120-125
- 4
Fleckenstein M, Charbel Issa P, Helb H M. et al .
High resolution Spectral Domain-OCT imaging in Geographic Atrophy associated with
Age-related Macular Degeneration.
Invest Ophthalmol Vis Sci.
2008;
49
4137-4144
- 5
Hu Z, Rollins A M.
Fourier domain optical coherence tomography with a linear-in-wavenumber spectrometer.
Opt Lett.
2007;
32
3525-3527
- 6
Ip L P, Nguyen T Q, Bartsch D U.
Fundus based eye tracker for optical coherence tomography.
Conf Proc IEEE Eng Med Biol Soc.
2004;
2
1505-1508
- 7
Ko T H, Fujimoto J G, Duker J S. et al .
Comparison of ultrahigh- and standard-resolution optical coherence tomography for
imaging macular hole pathology and repair.
Ophthalmology.
2004;
111
2033-2043
- 8
Ko T H, Fujimoto J G, Schuman J S. et al .
Comparison of ultrahigh- and standard-resolution optical coherence tomography for
imaging macular pathology.
Ophthalmology.
2005;
112
1922 e1921-e1915
- 9
Kozak I, Morrison V L, Clark T M. et al .
Discrepancy between fluorescein angiography and optical coherence tomography in detection
of macular disease.
Retina.
2008;
28
538-544
- 10
Leitgeb R A.
Optical coherence tomography – high resolution imaging of structure and function.
Conf Proc IEEE Eng Med Biol Soc.
2007;
2007
530-532
- 11
Lim J I, Tan O, Fawzi A A. et al .
A pilot study of Fourier-domain optical coherence tomography of retinal dystrophy
patients.
Am J Ophthalmol.
2008;
146
417-426
- 12
Meyer C H, Rodrigues E B, Mennel S. et al .
Functional and anatomical investigations in racemose haemangioma.
Acta Ophthalmol Scand.
2007;
85
764-771
- 13
Mumcuoglu T, Wollstein G, Wojtkowski M. et al .
Improved visualization of glaucomatous retinal damage using high-speed ultrahigh-resolution
optical coherence tomography.
Ophthalmology.
2008;
115
782-789, e782
- 14
Pircher M, Zawadzki R J, Evans J W. et al .
Simultaneous imaging of human cone mosaic with adaptive optics enhanced scanning laser
ophthalmoscopy and high-speed transversal scanning optical coherence tomography.
Opt Lett.
2008;
33
22-24
- 15
Ruggeri M, Wehbe H, Jiao S. et al .
In vivo three-dimensional high-resolution imaging of rodent retina with spectral-domain
optical coherence tomography.
Invest Ophthalmol Vis Sci.
2007;
48
1808-1814
- 16
Scholda C, Wirtitsch M, Hermann B. et al .
Ultrahigh resolution optical coherence tomography of macular holes.
Retina.
2006;
26
1034-1041
- 17
Unterhuber A, Povazay B, Bizheva K. et al .
Advances in broad bandwidth light sources for ultrahigh resolution optical coherence
tomography.
Phys Med Biol.
2004;
49
1235-1246
- 18
Wolf-Schnurrbusch U E, Enzmann V, Brinkmann C K. et al .
Morphologic changes in patients with geographic atrophy assessed with a novel spectral
OCT-SLO combination.
Invest Ophthalmol Vis Sci.
2008;
49
3095-3099
- 19
Yamaike N, Tsujikawa A, Ota M. et al .
Three-dimensional imaging of cystoid macular edema in retinal vein occlusion.
Ophthalmology.
2008;
115
355-362 e352
- 20
Zawadzki R J, Choi S S, Jones S M. et al .
Adaptive optics-optical coherence tomography: optimizing visualization of microscopic
retinal structures in three dimensions.
J Opt Soc Am A Opt Image Sci Vis.
2007;
24
1373-1383
Dr. Sven C. Beutelspacher
Augenklinik Klinikum Nürnberg
Prof. Ernst-Nathan-Str. 1
90419 Nürnberg
Phone: ++ 49/911/398-26 68
Fax: ++ 49/911/398-32 91
Email: sven.beutelspacher@klinikum-nuernberg.de